From 49f1ecb1bfe1c70a1a4f9c7e89804885c6c95dec Mon Sep 17 00:00:00 2001
From: sabrina-shanman <sabrina@highfidelity.io>
Date: Fri, 9 Aug 2019 11:12:35 -0700
Subject: [PATCH] Fix new bugs in TabletLODTools.qml

---
 .../resources/qml/hifi/dialogs/TabletLODTools.qml     | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/interface/resources/qml/hifi/dialogs/TabletLODTools.qml b/interface/resources/qml/hifi/dialogs/TabletLODTools.qml
index e4d21e5aa9..ed0545e6ad 100644
--- a/interface/resources/qml/hifi/dialogs/TabletLODTools.qml
+++ b/interface/resources/qml/hifi/dialogs/TabletLODTools.qml
@@ -31,9 +31,10 @@ Rectangle {
     readonly property real defaultMaxVisibilityDistance: 400.0
     readonly property real unitElementMaxExtent: Math.sqrt(3.0) * 0.5
     
-    function lodAngleDegToVisibilityDistance(var lodAngleDeg) {
-        var lodAngleRadians = lodAngleDeg * Math.PI / 180.0;
-        return unitElementMaxExtent / tan(lodAngleRadians);
+    function visibilityDistanceToLODAngleDeg(visibilityDistance) {
+        var lodHalfAngle = Math.atan(unitElementMaxExtent / visibilityDistance);
+        var lodAngle = lodHalfAngle * 2.0;
+        return lodAngle * 180.0 / Math.PI;
     }
 
     Column {
@@ -74,7 +75,7 @@ Rectangle {
                 id: adjustCheckbox
                 boxSize: 20
                 anchors.verticalCenter: parent.verticalCenter
-                onCheckedChanged: LODManager.setAutomaticLODAdjust(!checked);
+                onCheckedChanged: LODManager.setAutomaticLODAdjust(!adjustCheckbox.checked);
             }
         }
 
@@ -95,7 +96,7 @@ Rectangle {
             value: defaultMaxVisibilityDistance
             tickmarksEnabled: false
             onValueChanged: {
-                LODManager.setLODAngleDeg(lodAngleDegToVisibilityDistance(value));
+                LODManager.lodAngleDeg = visibilityDistanceToLODAngleDeg(slider.value);
                 whatYouCanSeeLabel.text = LODManager.getLODFeedbackText()
             }
         }